What role might basic intelligence play in determining where people choose to live? Psychologist Markus Jokela of the University of Helsinki gives his answer in an upcoming issue of the journal Intelligence.

Every year, 1.5 million Chinese women attempt to take their own lives—and 150,000 succeed. Experts say that 70% to 80% of the suicide attempts have to do with husband-wife issues; in a society of arranged marriages, women frequently have next to no power.